deselect Syllabification: (de·se·lect)Pronunciation: /ˌdēsəˈlekt/Translate deselect | into Italian Definition of deselect verb [with object] turn off (a selected feature) on a list of options on a computer menu. Derivatives deselectionPronunciation: /-ˈlekSHən/ noun deselect in other Oxford dictionaries Definition of deselect in the British & World English dictionary